Main processor and coprocessor communication system and communication method

Abstract

The invention discloses a main processor and coprocessor communication system, which comprises a main processor, a communication storage module, a communication control module, a coprocessor interrupt control module and a coprocessor. The main processor transmits a command word and a control word; the communication storage module stores the command word transmitted by the main processor; the communication control module receives the control word transmitted by the main processor and transmits a control signal; the coprocessor interrupt control module receives the control signal and transmits an interrupt signal; and the coprocessor acquires the command word from the communication storage module after receiving the interrupt signal. Compared with the prior art, the system has the advantages that: a design mode of a traditional coprocessor is changed, and communication between the main processor and the coprocessor is realized through a predefined command by adopting a mode of direct communication; therefore, the communication between the main processor and the coprocessor is more convenient and effective.

Description

【Technical field】 [0001] The invention relates to the field of chip design, in particular to the communication technology between the main processor and the co-processor. 【Background technique】 [0002] In the existing electronic product industry, the development cycle of new products is required to be shorter and shorter. If the product solution design manufacturer already has relatively mature and fixed hardware architecture and software architecture, when launching a new product, the main control chip is often not replaced, because replacing the main control chip means that the hardware architecture and software architecture of the entire system need to be changed. Make big changes. When implementing new functionality, it is often chosen to complement it with a coprocessor. The main processor is the main processing chip in the system and is used to control the entire workflow of the system. Coprocessors can assist the main processor to complete certain functions and ha...

AI Technical Summary

Problems solved by technology

The traditional main processor mainly achieves the purpose of controlling the coprocessor by operating registers and memory as a shared storage area, but in this way, the main processor cannot directly send interrupt signals to the coprocessor, but through registers and memory. Drive the coprocessor to perform functions, and the coprocessor cannot directly send interrupts to the main processor, but send interrupts to the main processor through the functional modules of the coprocessor

This makes the existing communication system difficult to communicate between the main processor and the coprocessor, the coprocessor is passive, and the communication speed is slow.

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